External links The sites here
can help you do some research for your essays.

Viewing
the files:

Most of the files below are .pdf files. If you have Adobe
Acrobat Reader, that program will read your files. If you
don't, I'd recommend that you install another program that will
view PDF files:PDFXChange
PDF
Reader
(for Windows XP, Vista, 7, 8, or 10). *If you want to PRINT up the files
(instead of simply viewing them), I would recommend the
PDFXChange viewer, because occasionally I see problems
printing up these files when I open them in the Adobe Acrobat
reader.*